Screw-driver



(No Model.) I

G. w. AGIN.

SGREW DRIVER.

No. 503,569. Patented Aug. 22, 1893 UNITED STATES PATENT OFFICE.

GEORGE W. AGIN, OF PEKIN, ILLINOIS.

SCREW-DRIVER.

SPECIFICATION forming part of Letters Patent No. 503,569, dated August22, 1893.

Application filed December 14, 1892. Serial No. 455,109. (No model.)

To atZZ whom it may concern.-

Be it known that I, GEORGE W. AGIN, a citizen of the United States,residing at Pekin, in the county of Tazewell and State of Illinois, haveinvented certain new and useful Improvements in Screw-Drivers; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to improvements in screw drivers.

The object of the invention is to provide a screw driver of such specialconstruction as to allow of said driver being used in corners and in allclose quarters where an ordinary tool of this class can not be used.

In the drawings forming a part of this application, Figure 1 representsa perspective view of the exterior portion of the screw driver. Fig. 2is a front view of the screw driver, showing parts separated. Fig. 3 isa plan View of the screw driver with parts removed to show internalconstruction. Fig. I is a perspective view. of the body of the screwdriver showing construction.

A represents a ball of metal of convenient size and weight, which ishollowed out, leaving a square opening as shown in Figs. 3 and 4: andwithin said space are journaled two beveled gear wheels G and D whichmesh with each other. The gear wheel G is mounted on a shaft G. Saidshaft carries in its outer free end the bit, and the inner end of saidshaft within the ball is smaller than the outer portion and thus ashoulder is left to bear against the ball when pressure is imposed uponit. The gear wheel D is also mounted on a-shouldered shaft D and thehandle and its shaft F has its connection with shaft D by a knucklejoint E.

In the several figures, the ball is shown cut into three pieces, leavingthe central body A and the caps 13 and B for closing the inner space ofthe portion A. The caps with the body A form a perfectly round ball andsaid caps are held in place by a bolt C passing through the caps andthrough the space in the portion A.

A bit or awl mounted in a slotted nib H is placed on the screw driverbit to first make an opening to start the screw after which said awl isremoved and the screw driver bit is engaged with the screw.

The device can be used with other tools as well as with the screw driverso that a ery handy tool is the result.

In using the device, the ball A is placed in the palm of the hand and bythis means a good steady pressure may be had and with the other hand thedevice may be driven by means of the handle and shaft F.

I claim 1. In a screw driver, the portion A having its interior hollowedout and provided with the gear wheels G and D mounted on the shafts Gand D respectively, the tool holder at the outer end of said shaft G,and means for rotating said shaft D, and the caps B and B secured to thesaid portion A forming a ball for the purposes herein set forth and described.

2. In a screw driver, the portion A having its interior hollowed out andprovided with the beveled gear wheels G and D said gear wheel G mountedon a shaft G journaled in said portion A, said shaft carrying theworking tool, the gear wheel D mounted onashaft D provided with theknuckle joint E, shaft F and a handle to furnish means for driving saidshaft F substantially as set forth and described.

In testimony whereof I affix my signature in presence of two witnesses.

- GEORGE AGIN. Witnesses:

OTTO KOCH, W. A. BoLEY.

